Dawson, rattling title Roxann Caballero (as well referred to as Roxann Biggs & Roxann Biggs-Dawson) was innate around Los Angeles, California. The graduate of the University of California, Berkeley, Dawson's first agent acting job was inside the Broadway production of A Chorus Line. She continued the stage career through the 1980s and 1990s, while from time to time landing minor film & television roles. Inside 1995, she was cast as a half-Klingon engineer B'Elanna Torres on Star Trek: Voyager. While working on Voyager, Dawson made her directorial debut; she has continued to direct occasionally for Star Trek: Enterprise and other television series.

Dawson has besides pursued the writing career; her number 1 play, Passage Through the Heart, debuted around 1997, and she has written (using Daniel Graham) a trilogy of science-fiction novels—Typing Tenebrea (ISBN 0671036076), ''Tenebrea's Hope (ISBN 0671036092), & Tenebrea Rising'' (ISBN 0671036114).

Dawsin has married twice, & has 1 girl, Emma Rose Dawson, natural on January 16, 1998.